Case Study Question for Class 12 Physics Chapter 7 Alternating Current Question 1: Read the para given below and answer the questions that follow: Resonant Series LCR Circuit. When the frequency of ac supply is such that the inductive reactance and capacitive reactance become equal, the impedance of the series LCR circuit is equal to … Read more
Case Study Question for Class 12 Physics Chapter 6 Electromagnetic Induction Question 1: Read the para given below and answer the questions that follow: Self Induction. When a current I flows through a coil, flux linked with it is φ = LI, where L is a constant known as self inductance of the coil. Any … Read more
Case Study Questions for Class 12 Physics Chapter 5 Magnetism and Matter Case Study Question 1: Read the following case/passage and answer the following questions: Elements of the Earth’s Magnetic Field. The earth’s magnetic field at a point on its surface is usually characterized by three quantities: (a) declination (b) inclination or dip and (c) … Read more
Case Study Questions for Class 12 Physics Chapter 10 Wave Optics Question 1: Diffraction of Light:A and B went to purchase a ticket of a music programme. But unfortunately only one ticket was left. They purchased the single ticket and decided that A would be in the hall during the 1st half and B during … Read more
Case Study Questions for Class 12 Physics Chapter 8 Electromagnetic Waves Question 1: Laser: Electromagnetic radiation is a natural phenomenon found in almost all areas of daily life, from radio waves to sunlight to x-rays. Laser radiation – like all light – is also a form of electromagnetic radiation. Electromagnetic radiation that has a wavelength … Read more
Case Study Questions for Class 12 Physics Chapter 14 Semiconductor Electronics Question 1: Light Emitting Diode:It is a heavily doped p-n junction which under forward bias emits spontaneous radiation. The diode is encapsulated with a transparent cover so that emitted light can come out. When the diode is forward biased, electrons are sent from n … Read more
Case Study Question for Class 12 Physics Chapter 4 Moving Charges and Magnetism Case Study Question 1: Moving coil galvanometer operates on Permanent Magnet Moving Coll (PMMC) mechanism and was designed by the scientist Darsonval. Moving coil galvanometers are of two types(i) Suspended coll(ii) Pivoted coil type or tangent galvanometer, Its working is based on … Read more
Case Study Questions for Class 12 Physics Chapter 2 Electrostatic Potential and Capacitance Case Study Question 1: When an insulator is placed in an external field, the dipoles become aligned. Induced surface charges on the insulator establish a polarization field Ēi in its interior. The net field Ē in the insulator is the vector sum … Read more
Case Study Questions for Class 12 Physics Chapter 12 Atoms Case Study Question 1: The spectral series of hydrogen atom were accounted for by Bohr using the relation where, R=Rydberg constant = 1.097 x 107 m-1 Lyman series is obtained when an electron jumps to first orbit from any subsequent orbit. Similarly, Balmer series is … Read more
Case Study Questions for Class 12 Physics Chapter 11 Dual Nature of Radiation and Matter Case Study Question 1: According to wave theory of light, the light of any frequency can emit electrons from metallic surface provided the intensity of light be sufficient to provide necessary energy for emission of electrons, but according to experimental … Read more
